There are many common causes of anal bleeding in men. 1, should ask whether there is a history of foreign body injury, such as foreign body injury to the anorectum, around which trauma can be seen, can lead to anal bleeding. 2, if the patient has mixed hemorrhoids, especially internal hemorrhoids, it is manifested as dripping blood, jet-like bleeding, the color of blood in the stool is bright red, especially in defecation, drinking alcohol, etc. leading to increased abdominal pressure or leading to varicose hemorrhoidal vein walls, and then The actual fact is that the actual person has a lot of the same problems as the actual person has. There are many reasons for anal bleeding in men, the color of the bleeding should be analyzed, and then if necessary, rectal diagnosis and colonoscopy should be performed to clarify the site of bleeding.